Daily Blog Tips is a site to help you make your blog better. Covers monetization, seo, etc.
John Chow is a blogger who blogs about making money from blogs. Along the lines of Darren Rowse at ProBlogger, with a totally different feel.
An article from Steve Pavlina on how to make money from your blog. Recommended by StrongLifts.com.
b5media is a blog network company. As at Jan 2008 they have over 320 blogs in 15 channels and over 10m unique visitors a month. They user WordPress standalone for all their blogs and manage monetisation centrally.
A site about how to get more from your blog, drive revenue, etc.